Scow



' Jan 6, 1931. J. WITKOWSKI SCOW Z; Sheets-Sheet l Filed June 18, 1930 Inuenlor A llorncy Jan 6, 1931. J. WITKOWSKI SCOW Filed June 18, 1950 3 Sheets-Sheet 2 A llomcy Jan 6, 1931. J w ws 1,787,849

SCOW

Filed June 18, 1930 5 Sheets-Sheet 3 Inventor A [lorncy Patented Jan. 6, 1931 UNITED STATES PATENT GFFICE JOSEPH WITKOWSKI, OF BALTIMORE, MARYLAND SCOW Application filed .Tune 18, 1930. Serial No. 462,070.

This invention relates generally to scows one of the structural details of the invenand more particularly to new and useful imtion. provements in devices of this character of Figure 7 is a detail view of one of the the bottom dump type. pawls.

The primary object of the invention is to Figure 8 is a detail View in perspective provide, in the manner as hereinafter, set showing a pivotally mounted pawl retaining forth, a scow of the aforementioned character device. embodying novel means for expeditiously Referring to the drawings in detail,it will weighting the doors of the wells or pockets be seen that the reference numeral 1 desigupwardly to closed position after Said wells nates the hull of a, scow having the deck or pockets have been dumped. portion 2 thereon. Disposed longitudinally Other objects of the invention are to prothrough the hull from top to bottom thereof vide a scow of the character described, havis a series of wells or pockets 3, 4, 5, and 6, ing means thereon for closing the doors which which are formed by the longitudinal walls means will be simple in construction, strong, 7 and the transverse wall 8, said ll 7 d durable, highly eflicient in operation, and 8 extending a distance above the deck 2. It is whi h may be manufactured and i ed on understood, of course, that any desired numa scow of conventional construction at comber f th wells or pockets may be pr vided.

paratively low cost and without the neces- Hingedly mounted for swinging movement 20 sity of materially altering the same. in the lower end portions of each of the All of the foregoing and st ll further obpockets or wells is a pair of doors 9, which jccts and advantages of the lnventlon m y constitute the bottoms of the said wells or become apparent from a study of the followk t A ill trat d in the drawing the ing SPQClfiCfitlOll, taken in connection -doors 9 are as at, and when closed the accompanying drawings, Whereln llke are substantially flush with the bottom of the characters of reference designate correspondh ll 1 b t it i d t d th t id doors ing parts throughout the several views, and may b hi d t any d i d i t ithi wherein: the wells or pockets.

g l 1S a p P .Vlew of f Mounted on the upper edge of one of the structcd in accordance with this invention. id w ll 7 d f bl t a i t th so g 'Q 2 18 veltlcill 'Q Sectional. Y W on where the transverse Wall 8 joins said one taken substantlally on h 11I 1e 9 Flgule side wall 7, is a series of bearings 11, in which a looking in the direction mdlcated y the are rotatably mounted theopposite ends of arrows. a series of longitudinally aligned independ- Figure 3 is a fragmentary detail V ently rotatable shafts 12, one of the shafts 12 showing the device for preventing the pawls b i id d f h ll or k t,

from accidentally kicking out or becoming Fi d on th dj t d f th h ft 12 disengage f m the ra g on opposite sides of the intermediate bear- Figure 4 is a detail V1e W p P Show ings 11 are the opposed bevelled gears 13,

0 ing a means for operatlvely Connectmg the as illustrated to advantage in Figures 1 and doors of one well or pocket to the doors of an 4 of th drawings. Projecting from each of adjacent Well P in a manner to lltlthe intermediate bearings 11 is a pintle or lize the weight of the load which is being stub shaft 14, upon which is detachably dumped in said adjacent pocketfor elevating mounted a bevelled coupling gear 15, which 5 the doors of the first named pockets which is adapted to mesh with the opposed pairs of have been dumped. gears 13, in the mannerto operatively connect Figure 5 is a top plan View of the detail the same together. The gear 15 is rotatably illustrated in Figure 3. retained on the stub shaft 14 by any suitable Figure, 6 is a detail view in vertical secmeans such as a cross pin 16. Also fixed on 50 tion, showing a pair of pulleys constituting each of the shafts 12 adjacent the opposite ends thereof are the collars 17, to which one end of the pairs of chains'18'are anchored. A pair of the chains is provided'for each of the wells or pockets in the scow. The chains 18 are trained over the upper pulleys 19, mounted in the brackets 20 on the transverse Walls 8 of the wells or pockets, said chains extending downwardly in the wells and being connected to the free end portions of the for vertical movement adjacent the opposite sides of said well.

Mounted loosely for rotation on the opposite end portions of the shafts 12 are the pulley wheels 26, over which are trained chains 27, having one end connected to the chains 18 at a point between the shafts 12 and'the pulleys 19.

The chains 27 depend from the pulleys 26, through the upstanding tubes 28 on the deck 2, and pass downwardly into the hull 1 and has connected to their lower ends the counter weight 29. Also fixed on each of the shafts 12 is a ratchet 30 ontone side of which is fixed a disc 31, having the circumferentially spaced peripheral sockets 32 therein for the reception of the usual actuating bar 33 (see Figure 3).- The ratchet on all but the rearmost shafts 12 are preferably mounted on an intermediate portion of said shafts. The

ratchet on the rearmost shaft 12 is preferably mounted on the rear end portion thereof.

Mounted for operative engagement with each of the ratchets 30 is a pawl 34, mounted for swinging movement in a horizontal plane on the supporting brackets 35 through the medium of the headed pins or the like 36. Mounted for engagement with eachof the pawls 34 is a keeper, which, as best seen in Figure 8 of the drawings, comprises a substantially inverted U-shaped portion 37, having thereon the integral right angularly disposed arms 38, having the eyes 39 on their free ends for pivotally mounting said keeper 37 for swinging movement in a Vertical plane between the upstanding ears 40 on one end portion of the metallic plate 41. As clearly seen in Figures 3 and 5 of the drawings, the keeper 37 is adapted to straddle the adjacent pawls 34 and rest thereon in a manner to prevent lateral swinging movement of said pawls out of engagement with the ratchets 30. When the keepers 37 are swung to the position indicated in hroken lines in Figure 3 of the drawings, the pawls 34 may then he kicked out of engagement with the ratchet 30.

Referring again to Figure 1 of the drawings, it will be seen that the rearmost of the shafts 12 extend through an intermediate bearing 42, having projecting therefrom a stub shaft 43, which, in turn, has mounted for rotation thereon a bevelled gear 44, to which is fixed an operating crank 45. The car 44 is in meshing engagement with a evelled gear 46, which is fixed on an intermediate portion of the said rearmost shaft 12 When the wells are loaded, the chains 18 are wound on their respective shafts 12, and said shafts'are retained against rotation by the pawls 34, engaged with the ratchet 30. When unloading the scow, the pawl 34 is disengaged from the ratchet 30, which controls the shaft 12 of the front well 3. The doors 9 of this well then swing downwardly to open position, in the usual manner, as illustrated in brokenilines in Figure 2 of the drawings. The bevelled gear 15 is then placed on the adjacent stub shaft 14 in a manner to connect the shaft 12 of the well 3 to the shaft of the well-4.

The pawl 34 isthen disengaged from the ratchet 30 which controls the shaft 12 of the well 4 and the doors of said well 4 swing downwardly to open position.

It is understood, of course, that when the doors swing to an open position, the chains 18 are unwound from'the shaft 12, thus imparting rotary movement to said shafts. In

this manner, when the well 4 is being dumped,

its respective shaft 12 will'be rotated in one direction by the chain 18 and the shaft of the well 3 will be driven in the opposite direction through the medium of the removable gear 15. Thus, the doors 9 of the previously emptied well 3 will be raised to closed position. The counter-weights 25 and 29 facilitate this operation and relieve the doors of the well which is being unloaded from some of the strain of elevating the doors of the well which have been previously dumped. This operation is repeated until the last well is reached. Said last well may he closed through the medium of the gears 44, and 46, and the crank handle 45, or through the medium of the respective socketed disc 31 and the bar 33. It will also be seen that the counterweights 25 and 29 also aid in manually raising the doors of the last Well to be dumped. The keepers 37 effectively retain the pawls .34 in engagement with the ratchet 30 until it is desired to release or disengage the pawls therefrom, at which time, as before stated, the keepers 37 are swung upwardly to the position shown in broken lines in igure 3.

It is believed that the many advantages of a vention is as illustrated and described, it is to be understood that changes in the details of construction may be had, which will fall within the scope of the invention as claimed.

What is claimed is:

1. A scow of the character described comprising a hull having a series of wells therein, hinged doors in the wells constituting the bottoms thereof, independent shafts journaled for rotation adjacent each of the wells, and operatively connected to the doors, gears keyed to said shafts, bearings for the adjacent ends of the shafts, stub shafts carried by the bearings, and a coupling gear removably j ournalled on said stub shafts, for operatively connecting the shafts together for rotation in opposite directions.

2. A scow of the character described comprising a hull having a series of wells therein,

hinged doors in the wells constituting the bottoms thereof, independent shafts journalled for rotation adjacent each of the wells and operatively connected to the doors, said shaft being substantially in longitudinal alignment with each other and independently rotatable, gears keyed to said shafts, bearings for the adjacent ends of the shafts, stub shafts carried by the bearings, and a coupling gear removably journalled on said stub shafts, for operatively connecting one of the shafts to another of the shafts for actuation thereby in an opposite direction.

3. A scow of the character described comprising a hull having a series of wells therein, hinged doors in the wells constituting the bottoms thereof, a shaft journaled for rotation adjacent each of" the wells, chains connected to the doors and windable on the shafts, gears fixed on each of the shafts, and a coupling gear .removably interposed between the first named gear and in meshing engagement therewith in a manner to 0per atively connect the shafts together for rotation in opposite directions.

4. A scow of the character described comprising a hull having a series of wells therein, hinged doors in the well constituting the bottoms thereof, a shaft journaled for rotation adjacent each of the wells,'chains windable on the shaft and connected to the doors,

gears fixed on each of the shafts, a coupling gear ren'iovably interposed between the first named gear and in meshing enga ement therewith in a manner to operativel y conprising a hull having a series of wells therein, hinged doors in thewells constituting the bottoms thereof, shafts ournaled for rotation adjacent the wells, said shafts disposed in longitudinal alignment with each other, chains windable on the shafts and connected to the doors, opposed gears fixed on adjacent ends of the shafts for rotation therewith, a coupling gear removably interposed between the fixed gears for operatively connecting same together in a manner to cause the shafts to rotate simultaneously in opposite directions, ratchets on each of the shafts, horizontally swingable pawls engageable with the ratchets to retain the shafts against rotation, and substantially inverted U-shaped keepers engageable with the pawls to, releasably retain the same against swinging movement.

6. In a scow of the character described, the combination of a hull having. a plurality of wells therein, doors constituting the bottoms of the Wells, a plurality of rotatable shafts operatively connected .to the doors, and releasable means for operatively connecting the shafts together for rotation in opposite directions. l

7. A scow of the character described comprising a hull having a series of wells therein, doors hingedly mounted at the lower end portions of the wells and constituting the bottoms thereof, a series of aligned shafts rotatably mounted on the hull and operatively connected to the doors, gears fixed on the shafts, and removable gears operatively engaged with the gears on the adjacent shafts for operatively connecting said adjacent shafts together for rotation in opposite directions.

8. A scow of the character described comprising a hull having a series of wells there- I in, hinged doors constituting the bottoms of the well, a plurality of rotatable shafts operatively connectedto the doors, gears fixed on the shafts, and means releasably engageable with the gears for operatively connecting certain of the shafts together for rotation in opposite directions.

9. In a scow of the character described,

' the combination of a hull having a plurality of wells therein, hinged doors at the lower portions of the wells, a plurality of rotatable shafts, releasable means operatively connecting the shafts together, and means opera tively connecting the doors with the shafts for swinging certain of the doors toward their closed position when certain of the doors are swung toward their open position.

10. In a scow of the character described, the combination of a hull having a series of wells therein, hinged doors constituting the bottoms of the wells, a series of longitudinally aligned independent shafts rotatably mounted adjacent the Wells, releasable means ope-ratively connecting the adjacent shafts together, chains windable on the shafts and operatively connecting the doors thereto, the shafts, the chains, and the releasable means constituting means for operativel connecting the doors ofa well which has heen emptied to the doors of an adjacent well which is being emptied for swinging the doors of the previously emptied wells to closed position by the weight of the load inthe emptying well.

In testimony whereof I afiix m si I ture.

JOSEPH WIT SKI. 

